NAICS 813312:
Environment, Conservation and Wildlife Organizations

This U.S. industry comprises establishments primarily engaged in promoting the preservation and protection of the environment and wildlife. Establishments in this industry address issues, such as clean air and water; global warming; conserving and developing natural resources, including land, plant, water, and energy resources; and protecting and preserving wildlife and endangered species. These organizations may solicit contributions and offer memberships to support these causes.

Animal rights organizationsNatural resource preservation organizationsConservation advocacy organizations+2 examples

Wildlife preservation organizationsHumane societies without animal shelters

Matching SIC code: 8399 Social Services, Not Elsewhere Classified (also 8699 Membership Organizations, Not Elsewhere Classified)

Where it sits

81Other Services (except Public Administration)Sector
813Religious, Grantmaking, Civic, Professional, and Similar OrganizationsSubsector
8133Social Advocacy OrganizationsIndustry group
81331Social Advocacy OrganizationsNAICS industry
813312Environment, Conservation and Wildlife OrganizationsNational industry

Largest companies with NAICS 813312

Updated Nov 9, 2026

Rank	Company	Headquarters	Employees
1	The Nature Conservancynature.org	Arlington, US	7.5K
2	Conservation Internationalconservation.org	Arlington, US	1.8K
3	Environmental Defense Fundedf.org	New York, US	1.4K
4	World Wildlife Fundworldwildlife.org	Washington, US	1.4K
5	World Resources Institutewri.org	Washington, US	1.4K
6	Sierra Clubsierraclub.org	Oakland, US	1.4K
7	Rainforest Alliancerainforest-alliance.org	New York, US	1.2K
8	Ducks Unlimitedducks.org	Memphis, US	1.2K
9	Best Friends Animal Societybestfriends.org	Kanab, US	1.1K
10	Natural Resources Defense Council (NRDC)nrdc.org	New York, US	1.1K

Not this code?

Similar activities the Census classifies elsewhere.

812910Pet Care (except Veterinary) ServicesEstablishments primarily engaged in operating animal shelters
5411Legal ServicesEstablishments primarily engaged in providing legal services for environment, conservation, and wildlife organizations
712190Nature Parks and Other Similar InstitutionsNature preserves or conservation areas
924110Administration of Air and Water Resource and Solid Waste Management ProgramsGovernment establishments primarily engaged in administering, overseeing, and managing governmental ecological restoration programs

Questions about NAICS 813312

Which businesses use NAICS 813312?

Animal rights organizations, natural resource preservation organizations and conservation advocacy organizations, and similar businesses in the Other Services (except Public Administration) sector. This U.S.

What SIC code matches NAICS 813312?

SIC 8399, Social Services, Not Elsewhere Classified; SIC 8699, Membership Organizations, Not Elsewhere Classified, from the US Census Bureau's concordance between the two systems.

How many companies have NAICS 813312?

15,294 companies with a website carry NAICS 813312 as their primary code in Crustdata's data, worldwide.

Find any company's NAICS codeType a company name or website and get its codes with their titles.

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Code titles, definitions, examples and SIC matches: NAICS 2022 and the Census concordances, US Census Bureau. Company counts and lists: Crustdata, companies with a website, each by its primary code, updated weekly. Employee counts are estimates.